As far as I know a dual coil set up will share the 90 W between the two coils. You would think that the performance would be less if you are only putting half the W through each coil, but the argument here is that you have double the surface area and juice evaporation and that 45 W should be sufficient to vaporise the juice. Juice vaporizes at much lower W than 45. You need 3.91 V to drive that 90 W. Easy enough with a dual battery in series but the single battery will need a boost of some kind to produce those V until the power runs out.
Basically the circuitry dams up the lower voltage until it reaches what you have asked of it and then releases it. This happens in a series of pulses (the speed is what amazes me in vape mods) in milliseconds. The better the chip the more efficient this is.
Basically the circuitry dams up the lower voltage until it reaches what you have asked of it and then releases it. This happens in a series of pulses (the speed is what amazes me in vape mods) in milliseconds. The better the chip the more efficient this is.